Feeler tip for side-slipping feelers



May 25 1926. 1 1,586,502

' J. F. HARTMAN FEELER TIP FOR SIDE SLIPPING FEELERS Filed June 29, 1923 Patented 1926.

i UNITED-STATES;

. JAMES F. HARmM'Amoii FALL RI ER; MAssAcrr sET'rs, :Assie1\ToR;ro rim sTArroRn comrlmzor Bos'roN; M SSACHUSETTS; A CORPORATION. or MASSACHUSETTS. :e I 1 ustin rIP non sm m me' fmm i -nppl icatiqnlfilcd une 29, 1923. Serial no; .e4s,4s5.v

. The invention has relation to depletion indicating devices for. looms, of the "class -c0mmonly known 'as filling-feelers.- As'is well known, a device of such class has a fillingsengaging portion or; tip" which. is adapted to enter the shuttle inuse upon aloom, to test or feel7 thevvound mass of, filling up on the filling-carrier. carried within the shuttle to" ascertain.-Wl 1ether it has hef p 'injFig; 1, Q bei n'g the front platejof.the l shuttle-box upon that end of the lay-beam come siibstantially exhausted.

Tl1e[invention1has for its object to pro-' vide a filling engaging portion. ortip hav--v ing. an improved action jin its. engagement with the filling mass within a shuttle, and

less liable to injure the filling than -the tootl'led contact-portions or tips of thefill-j ing-feelers a'tpresent in use.

The invention consists in a normally making. engagement with the turnslotffilling upon-the filling-carrier in'a' feeling action and adapted to become em-j I p 'm-e'c-hanlsm is positioned.

bedded among saidv turns and one or; more yielding contact-portions laterally adjoin ing in an: alternating seriesfand adapted to i make contact .Withturns projecting relative 'to the sairl'teet-h. QIt: consists further in features of construction Which hereinafter 3 1 are described f 'fa-ndfare pQintedput, inthe claims; The said yielding,contact-portion or portions may advantageously be made .of frlctionalmaterial, espec ally 1n thecase of atipf'forining an element of a' side-slipping feeleranechanlsm. j I r The invention is applicable inv connection I withifeelersot varions'class'es, both slipping r f and non-slipping. It .especiallyapplicable in the. case of side-slipping feelers of the.

various known types.

An illustrative embodiment inven tionis shown in the accompanying drawings combined With a filling-feeler. of theflsidea slipping class, andmodific-ations ofthe feeler tip construction aresho-Wn in separate views. In the drawings p Fig.1 isaplan'view; of the said fillingieeler' having the, said illustrative embodimentof the invention}. cornbinedtherewith,- and also po'rtions of the--1ay+beam. of a loom,-

and ofonle .ofvthe slinttle bolxes of the lay a shuttle occupying] said shuttle looxfand a filling-carrier .Within'the said shuttle.

Fig. zis a plan'vi of t fee-lei; p

. e t p '9 V fill ng-engaging portion comprlsmg "one orv more unyielding contact-portlons, or teeth Fig. 3'is'a x ie'w of thewvorking endtherek '5 oltylooking from the right. in Fig. 2'.

Fig. 4; is a vi'ew of the said feeler ti p' part-ly broken away and partly in horizontal section. g Figs. 5 and'6'shoiv tips'of'modifie'd cone. structiomjf I 1, e

Having reference to thedrawiiigsfsmall portion ofthe lay-beam lissh'o vn which is adjacent the feeler-Inechanimm and The said front-plate and the front wallfiot theshuttle have the usual'openings 21, 41',

to permit fent ranceof the filling-engaging "Port-1011 or tip 5'0f the' fee1er mechanism as J the lay heats up to provide for contact bee the endofljtheiloonrat which the feeler I As already il'ldic'atedp my; invention j is shown 11F1g; lcomblnedwlth teeler 'mecha nismwhichWorks on the side-slipping prin-' ciple, and in the'illnstrated instance the-said meehanisniis of the typje'infivhich the fill-1 ingeng'aging portion or tip 5 Wl1i3l1 enters the shuttle 4t, andcontactswiththe contents 'thereofgis offset Witlrrespect to the pivotal point 51f'ofconnecti0n of the' teeler-me nber -9",with the, forwardly and rearwardlyniovable yielding support 18. The said support,

as the my comes forward in'beatingnp.

V i In practice,gthe contactingl rearvvard face of the filling-engagingeportion or tip of a side-slipping ifeeler-device isusuall'y rough;

4 ash uttle occu'pyingthesaid shuttle=boxf 9O as usual, is normally held rearvvard through. the expansion 'of'its ,actuating' spring 9'. wi'lljbeunderstood, *the said filling env gaging portion tends 'toslip sidewise under the pnsh 0t; the advancing shuttle-contents tnrns of fillingfi', so as to preventlateral slipp ng movement of the feeler-1nen:1,0er so long' as any substantial amount of wound! V los .Within the shuttle, butflis intended to slip I filling remains u onithe fillin 'rcarrier I7" e l a:

sidewise' along the surface of the ffillingcarrier frwhenthe latter has become pracf H tically denuded." This sidewis'e slipping v movement is ntilized through suitable "connections withthe change calling devices of the loom to stop the weaving or 'to initiate automatic filling replenishn'ient, as the case may be. In the illustrated instance the forwardly extending arm 91 of the feelernicmber 9 is connected by means of wire 11 with the said change-calling devices (not shown) It has been found in practice that fillingengaging portions or tips of metal and other hard substances, especially when provided with roughened ortoothed surfaces, have a tendency to out and wear the yarn wound on the filling-carrier at the point where the impact falls, as the result of repeated contacts. This is particularly true when using fine yarns for weft, inasmuch as the yarn is relativelyweak and easily cut and frayed, and also the turns or coils with which the tip inalies contact are exposed to its action for a long period of time, since the filling-car rier holds a relatively great length of fine yarn, which will run for quite a while.

My invention nialtes it possible to retain tlie z1cl\-*aiitages of the. toothed construction of fe'ele'r tips without having the usual drawbaclt of injury to th'eyarn.

In accordance with my invention, the toothed feelcr-tip 5, formed with teeth 52, 52, fo'1- engagen'ient with the wound filling within the shuttle, has combined therewith a cushion 10 which contacts with the filling alongside the said teeth until the wound mass upon the filling-ca-rrier '1- becomes substantially depleted. In Figs. 1 to 4, the cushion is simply and cheaply provided by drilling a hole 53 laterally through the extrei'iie're'arward end of the filling-engaging portion or tip 5 at the bases of the teeth 52, 52, and drawing into this bore a tight-fitting cord of yarns either laid or twisted. The slotsb'etw'een the teeth 52, 52, intersect the said hole, and expose the said cord between the teeth. Other materialsof a resilient,

cushioning, nature may equally well be used,

such as rubber or fabric. Or, in other instances,l may employ cushioning material to fill the voids between the teeth by merely winding such material around the rearward end of the tip 5, as at 1001a Fig. 5, in which case the said end is spirally grooved to form the teeth and accommodate the wound material. Instill other instances, the action of the toothed feel'er-ti'p may be obtained by applying a piece 101, Fig. 6, of resilient or cushioning material to the rearward face of .a feeler tip which has no teeth, and securing such cushion by transverse windings of coarse wire 102 with the turns relatively widely spaced. In this latter arrangement,

the turns of wire act as teeth to engage with the t urnsof. filling just as do the teeth of a feeler tip of the illustrated type. a

,The. cushion of resilient material substantially fills the hetweenthe teeth, buit' permits the teeth to engage well with the filling-mass 6, and become embedded between the turns of filling in a feeling action while at the same time the cushion 10 is reccivin'g' a large portion of the impactof the said filling-mass 6 and softening the blow, as well'aslimitingthe penetration of the teeth. Also, by this arrangement the teeth are permitted to contact with the hard sur- "ice of the filling-carrier 7 when it has become bare or substantially bare, so as to slide freely thereon in accordance with the intended side slip ping action and call the change.

I claim as my iiivei1tion, 1. In filling-feeler mecli'anism for looms, a side-slipping feeler tip having teeth normay making engagement with the turns of filling upon the filling-carrier in a feeling action and adapted to embed themselves among said turns, and non-metallic cushion.- ingmaterial disposed adjacent such teeth and adapted to make contact with turns projecting relative to "the said teeth.

2. In filling-feelermechanism for looms, a side-slipping feeler tip having teeth normally' making engagement with the turns of filling upon the filling-carrier in a feeling action and adapted to embed themselves among said turns, and fibrous cushioning material disposed adj'ac'ent such teeth and adapted to make contact with turns projecting relative to the said teeth.

3. In filling f'e'eler mechanism for looms, a sicle' slipping feelei' tip having teeth for engagement with the "turns of filling upon the filling carrier, and cushioning material between the said teeth.

l. In filling-f'e'eler mechanism for looms, a side-slipping feeler tip having teeth for en'gagifeinent with the turns of filling upon the filling-carrier, and cushioning material underlying the sai'd'teeth and filling the spaces between the teeth.

5;. In filling-feeler mechanism for-looms, a side-slippingfeeler tip having teeth for engagement with the turns of filling upon a filling-carrier, and cushioningmaterial between the said teeth adapted to engage the said turns of fillingwithout contact with the filling-carrier when the latter becomes bare. p

6'. In filling-feeler mechanism for looms, a side-slipping feeler tip having teeth for engagei'nent with the turns of filling upon a filling-carrier, and eushi'oniiig material eX- posed between the said teeth, the latter project'i'ng beyond the oushioningmaterial.

7. A feeler-tip having a laterally extending hole in its working end and slots in its 1 working face intersecting said hole, with teeth between said slots, and cushioning 1na= terial occu'iying said hole and exposed at such slots or contact with the filling upon a filling-carrier in the feeling operation.

i a yarn-carrier,

8; In fillingfeeler mechanism for looms;

a feeler-tip [comprising unyielding contact- POTtlOHS and;non-metallic yielding contact-s portions laterally adjoining in' an eltern'atfl iug series, said yielding contaot portions. adapted to engage fillingentering-between. the unyielding ones in a feelingnotion."

9. In filling-feeier mechanism for looins,

contact-portions adapted to engage filling entering between the unyielding ones inla feelln action and the nu IQlClIII Contact portlonsadapted to sl p upon the surface 01- flO." A .feeler-tip comprising one or nore *engagingyand deta ning pro ections normally einbedding inthe; turns of filling in a feeling action and oneor more laterally ado ning cooperating cushions of non-metallic yielding lnaterial adapted for Contact with turns pro ectingreietive to said PIOJGOtlOH or projections. e-

11. A feeler-tip comprising one or more.

engaging and detaining projections non inally embedding in the turns of filling inn feeling nCtion and one or more later ally adjOllilllg Cooperatingcusnions of non-metallic fr ctional*lnuterinl edaptedvfoi" content with to" Said pro-3 ectlon turns pro eo'ting r elat-iv e oif'proje'ctions. ;v

gJAl fl'ES E'HARTMAN. 

